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Superimposed pilot (SIP) transmission improves spectral efficiency by eliminating the dedicated pilot overhead required in orthogonal pilot (OP)-based schemes. However, SIP suffers from severe pilot-data coupling, which leads to a critical…

Information Theory · Computer Science 2026-05-29 Xinjie Li , Xingyu Zhou , Jing Zhang , Chao-Kai Wen , Xiao Li , Shi Jin

Superimposed pilot (SIP) schemes face significant challenges in effectively superimposing and separating pilot and data signals, especially in multiuser mobility scenarios with rapidly varying channels. To address these challenges, we…

Signal Processing · Electrical Eng. & Systems 2025-10-14 Run Gu , Renjie Xie , Wei Xu , Zhaohui Yang , Kaibin Huang

The superimposed pilot transmission scheme offers substantial potential for improving spectral efficiency in MIMO-OFDM systems, but it presents significant challenges for receiver design due to pilot contamination and data interference. To…

Information Theory · Computer Science 2025-07-15 Xinjie Li , Xingyu Zhou , Yixiao Cao , Jing Zhang , Chao-Kai Wen , Xiao Li , Shi Jin

In this paper, the introduction of interference cancellation in full-duplex joint radar and communication receivers is analysed. More specifically, a focus is made on scenarios in which the receiver simultaneously receives radar echoes from…

Signal Processing · Electrical Eng. & Systems 2024-10-02 François De Saint Moulin , Claude Oestges , Luc Vandendorpe

The simultaneous transmission of numerous users presents substantial challenges due to the inherent trade-off between channel estimation and information transmission in multi-user multiple-input multiple-output (MIMO) system. In this paper,…

Information Theory · Computer Science 2025-05-14 Shuxiao Ye , Xianchao Zhang , Neng Ye

In this paper, superimposed pilots are introduced as an alternative to time-multiplexed pilot and data symbols for mitigating pilot contamination in massive multiple-input multiple-output (MIMO) systems. We propose a non-iterative scheme…

Information Theory · Computer Science 2017-08-09 Karthik Upadhya , Sergiy A. Vorobyov , Mikko Vehkapera

In-band full-duplex systems are able to transmit and receive information simultaneously on the same frequency band. Due to the strong self-interference caused by the transmitter to its own receiver, the use of non-linear digital…

Signal Processing · Electrical Eng. & Systems 2018-12-04 Yann Kurzo , Andreas Burg , Alexios Balatsoukas-Stimming

In massive multiple-input multiple-output (MIMO) systems with time shifted pilot (TSP) schemes, the inter-group interference caused by the pilot contamination can be eliminated when the number of base station (BS) antennas M approaches…

Signal Processing · Electrical Eng. & Systems 2020-06-29 Bule Sun , Yiqing Zhou , Jinhong Yuan , Jinglin Shi

Orthogonal time frequency space (OTFS) modulation is a promising solution to handle doubly-selective fading, but its channel estimation is a nontrivial task in terms of maximizing spectral efficiency. Conventional pilot assignment…

Signal Processing · Electrical Eng. & Systems 2026-02-25 Yuta Kanazawa , Hiroki Iimori , Chandan Pradhan , Szabolcs Malomsoky , Naoki Ishikawa

In-band full-duplex systems can transmit and receive information simultaneously on the same frequency band. However, due to the strong self-interference caused by the transmitter to its own receiver, the use of non-linear digital…

Signal Processing · Electrical Eng. & Systems 2020-05-08 Yann Kurzo , Andreas Toftegaard Kristensen , Andreas Burg , Alexios Balatsoukas-Stimming

This paper discusses transmission strategies for dealing with the problem of self-interference in multi-hop wireless networks in which the nodes communicate in a full- duplex mode. An information theoretic study of the simplest such…

Information Theory · Computer Science 2011-11-04 Evan Everett , Debashis Dash , Chris Dick , Ashutosh Sabharawal

This paper addresses the modeling and digital cancellation of self-interference in in-band full-duplex (FD) transceivers with multiple transmit and receive antennas. The self-interference modeling and the proposed nonlinear spatio-temporal…

Information Theory · Computer Science 2014-10-14 Lauri Anttila , Dani Korpi , Emilio Antonio-Rodríguez , Risto Wichman , Mikko Valkama

Consider an integrated sensing and communication (ISAC) system where a base station (BS) employs a full-duplex radio to simultaneously serve multiple users and detect a target. The detection performance of the BS may be compromised by…

Signal Processing · Electrical Eng. & Systems 2024-09-16 Shu Cai , Zihao Chen , Ya-Feng Liu , Jun Zhang

In this paper we study the reception zones of a wireless network in the SINR model with receivers that employ \emph{interference cancellation} (IC), a technique that allows a receiver to decode interfering signals, and \emph{cancel} them…

Computational Geometry · Computer Science 2013-09-13 Chen Avin , Asaf Cohen , Yoram Haddad , Erez Kantor , Zvi Lotker , Merav Parter , David Peleg

We propose a pilot-data transmission overlay scheme for multipair massive multiple-input multiple-output (MIMO) relaying systems employing either half- or full-duplex (HD or FD) communications at the relay station (RS). In the proposed…

Information Theory · Computer Science 2016-06-06 Leyuan Pan , Yongyu Dai , Wei Xu , Xiaodai Dong

Passive intermodulation (PIM) has emerged as a critical source of self-interference in modern MIMO-OFDM systems, especially under the stringent requirements of 5G and beyond. Conventional cancellation methods often rely on complex nonlinear…

Signal Processing · Electrical Eng. & Systems 2025-11-04 Xiaolong Li , Zhi-Qin John Xu , Peiting You , Yifei Zhu

In this paper we propose and analyze a novel self-interference cancellation structure for in-band MIMO full-duplex transceivers. The proposed structure utilizes reference receiver chains to obtain reference signals for digital…

Information Theory · Computer Science 2016-11-17 Dani Korpi , Lauri Anttila , Mikko Valkama

Large-scale multiple-input multiple-output (MIMO) with high spectrum and energy efficiency is a very promising key technology for future 5G wireless communications. For large-scale MIMO systems, accurate channel state information (CSI)…

Information Theory · Computer Science 2015-11-30 Zhen Gao , Linglong Dai , Zhaocheng Wang

Receivers with joint channel estimation and signal detection using superimposed pilots (SP) can achieve high transmission efficiency in orthogonal time frequency space (OTFS) systems. However, existing receivers have high computational…

Information Theory · Computer Science 2024-04-16 Fupeng Huang , Qinghua Guo , Youwen Zhang , Yuriy Zakharov

Multistatic integrated sensing and communications (ISAC) systems, which use distributed transmitters and receivers, offer enhanced spatial coverage and sensing accuracy compared to stand-alone ISAC configurations. However, these systems…

Signal Processing · Electrical Eng. & Systems 2025-07-29 Taewon Jeong , Lucas Giroto , Umut Utku Erdem , Christian Karle , Jiyeon Choi , Thomas Zwick , Benjamin Nuss
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